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公开(公告)号：US20230179400A1
公开(公告)日：2023-06-08
申请号：US18163980
申请日：2023-02-03
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Longhua GUO , He LI , Rong WU
IPC: H04L9/08 , H04W12/033
CPC classification number: H04L9/0819 , H04W12/033 , H04L9/0861 , H04W4/06
Abstract: Embodiments of this application provide a key management method and a communication apparatus, and relate to the field of communication technologies, to securely transmit multicast service data, and prevent an unauthorized terminal device from obtaining the multicast service data. The method includes: A terminal device obtains a target key, where the target key includes at least one of a target multimedia broadcast/multicast service service key MSK, a first sub-key corresponding to the target MSK, or a second sub-key corresponding to the target MSK, the first sub-key is for confidentiality protection calculation, and the second sub-key is for integrity protection calculation. The terminal device receives target data from a multicast user-plane processing network element, where the target data is data on which security protection is performed. Then, the terminal device processes the target data by using the target key.
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公开(公告)号：US20240098675A1
公开(公告)日：2024-03-21
申请号：US18523262
申请日：2023-11-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yishan XU , Hualin ZHU , Longhua GUO , Haoren ZHU
Abstract: The present application discloses methods and apparatuses for tag management. In an example method, a first mobility management function receives a registration request message sent by an access network device. The registration request message requests to register a tag in a core network. The first mobility management function obtains identification information of a second mobility management function from a unified data management function based on the registration request message. The second mobility management function stores context information of the tag. The first mobility management function obtains the context information of the tag from the second mobility management function.
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公开(公告)号：US20210344680A1
公开(公告)日：2021-11-04
申请号：US17374405
申请日：2021-07-13
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Longhua GUO , He LI
Abstract: Example methods and apparatus for enhancing cross-network access security are described. In one example method, a terminal accesses a second network by using a packet data unit (PDI) session established in a first network. A session management network element in the first network receives a first request message for the PDIJ session, where the first request message comprises address information of the terminal, an identifier of the second network, and indication information for prohibiting the terminal from accessing the second network. Based on the first request message, the session management network element stores the information for prohibiting the terminal from accessing the second network, and blocks access of the terminal to the second network.
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公开(公告)号：US20240389006A1
公开(公告)日：2024-11-21
申请号：US18785697
申请日：2024-07-26
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yishan XU , Hualin ZHU , Longhua GUO
Abstract: Embodiments of this application provide a terminal management method and a core network device. The method includes: A first core network device receives a first message from a terminal. When determining, based on quantity information, to allow the terminal to access the network, the first core network device sends a second message to an operation requester to which the terminal belongs. The quantity information includes a quantity of terminals that the operation requester is allowed to use, the second message includes first identification information. In embodiments of this application, the first core network device determines to allow the terminal to access the network, so that a quantity of terminals accessing the network among terminals corresponding to the operation requester can be prevented from being greater than or equal to the quantity of terminals that the operation requester is allowed to use.
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公开(公告)号：US20240089720A1
公开(公告)日：2024-03-14
申请号：US18513999
申请日：2023-11-20
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Longhua GUO , Vishnu PREMAN , Rong WU
Abstract: Embodiments of a network selection method and a related apparatus are provided. In the method, an apparatus receives a broadcast message from a non-forbidden public land mobile network (PLMN) and a broadcast message from a forbidden PLMN. The broadcast message of the forbidden PLMN includes a disaster occurrence indication, and the disaster occurrence indication indicates that a disaster has occurred on the non-forbidden PLMN. The apparatus requests, based on the disaster occurrence indication, to register with the forbidden PLMN, when the apparatus fails to register with the non-forbidden PLMN. According to the foregoing method, the apparatus can select a network that ensures a normal service, and a service interruption to the apparatus caused by the disaster that occurs on the non-forbidden PLMN can be effectively reduced.
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Patent Agency Ranking
公开(公告)号：US20220174761A1
公开(公告)日：2022-06-02
申请号：US17674590
申请日：2022-02-17
Applicant: Huawei Technologies Co., Ltd.
Inventor： Longhua GUO , Li HU , He LI
IPC: H04W76/12 , H04W12/106 , H04W12/033
Abstract: This application relates to the field of communications technologies, and provides a communications method and apparatus, to reduce a data transmission latency between an IAB node and an IAB donor. The method includes: An IAB node receives an uplink data packet from a terminal; the IAB node determines a PDCP layer security status of the uplink data packet; the IAB node determines a target secure tunnel from a plurality of secure tunnels between the IAB node and an IAB donor based on the PDCP layer security status of the uplink data packet; and the IAB node sends the uplink data packet to the IAB donor through the target secure tunnel. This application is applicable to a data transmission process.
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公开(公告)号：US20210250811A1
公开(公告)日：2021-08-12
申请号：US17245341
申请日：2021-04-30
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Longhua GUO , Li HU , Jing CHEN
Abstract: This application provides a method for controlling a connection between a terminal and a network, and an apparatus. The method includes: receiving, by a terminal, a packet filter; and discarding, by the terminal, an uplink data packet matching the packet filter. Based on this solution, a connection can be blocked near a source (that is, the connection is blocked from the terminal), to reduce traffic exchanged between the terminal and a user plane network element. Compared with an existing technical solution, the terminal implements traffic control to reduce a quantity of uplink data packets sent to the user plane network element, thereby reducing load of the user plane network element.
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公开(公告)号：US20240422627A1
公开(公告)日：2024-12-19
申请号：US18816065
申请日：2024-08-27
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Longhua GUO , Rong WU , Valtteri NIEMI
IPC: H04W36/00
Abstract: This application provides a cell handover method and apparatus. The method may include: A terminal device receives a physical layer parameter and system information for a candidate cell, and then measures signal strength of the candidate cell based on the physical layer parameter, and sends a measurement result and signature obtaining indication information and/or signature check result indication information to an access network device, where the signature obtaining indication information indicates whether the system information carries a signature, and the signature check result indication information indicates whether signature check succeeds. In the foregoing solution, the terminal device may indicate, to the access network device, whether the system information for the candidate cell carries the signature and/or whether the signature check of the system information succeeds.
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公开(公告)号：US20230396433A1
公开(公告)日：2023-12-07
申请号：US18451935
申请日：2023-08-18
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Longhua GUO , Rong WU
CPC classification number: H04L9/0891 , H04L9/088 , H04L12/185
Abstract: Embodiments of this application provide a key update method and apparatus. The key update method includes: generating a second multicast transmission key, where the second multicast transmission key is an updated key of a first multicast transmission key; and sending a first message, where the first message includes the second multicast transmission key and a multicast group identifier, and the first message indicates to update a multicast transmission key corresponding to the multicast group identifier to the second multicast transmission key. The key update method and apparatus in embodiments of this application can meet a key update requirement in a multicast transmission service, to further protect business interests of a service provider and improve system security.
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公开(公告)号：US20230370961A1
公开(公告)日：2023-11-16
申请号：US18360761
申请日：2023-07-27
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yuan WANG , Longhua GUO , Hualin ZHU , Zhongping CHEN
Abstract: A network access method includes receiving, by a terminal device, a broadcast message from an access network device. The broadcast message includes identification information of one or more closed access groups (CAGs) supported by a first cell and a first default network access indication, and the first default network access indication indicates that the first cell can be accessed in a default access manner. The method also includes, in response to determining a first closed access group (CAG) list does not include the identification information of the one or more CAGs supported by the first cell, accessing, by the terminal device, the first cell based on the first default network access indication. The first CAG list is stored in the terminal device, and the first CAG list includes identification information of a CAG that is allowed to be accessed.
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